UPDATE (3:50 p.m.) — California Highway Patrol reports that the westbound lanes of SR-46 were opened as of 2:02 p.m.
Eastbound SR-46 was still closed just after 2 p.m., according to officials. Authorities say traffic was being diverted to Kecks Road at that time.
CHP has yet to release details about the crash.
(1:36 p.m.) — A fatal crash on SR-46 at Bitterwater Valley Road just east of Shandon has shut down all lanes of traffic in the area, according to CHP.
Officials say an approximately 10-mile stretch of SR-46 from Kecks Road to SR-33 is closed off from traffic.
Eastbound SR-46 drivers will reportedly be detoured at Kecks Road. CHP reports that westbound traffic on SR-46 is also being detoured at SR-33.
Authorities urge drivers to use caution in the area.
This story will be updated as new information becomes available.